Discuss the five advantages of secondary data, and also the five disadvantages of secondary data. Why do we need to evaluate data? Explain how a researcher evaluates secondary data.© BrainMass Inc. brainmass.com October 10, 2019, 8:10 am ad1c9bdddf
Advantages of Secondary Data
1) Savings on resources of time, money and personnel. Since secondary data is collected by someone else it means the data is collected relatively quickly. The researcher doesn't have to go through the long and costly processes of obtaining funding, designing and implementing their own survey, or paying for a sampling frame, conducting fieldwork, data preparation and data cleaning. The main cost in undertaking secondary analysis is that of obtaining the data.
(2) Increased data quality. Many secondary data sets are of high quality, especially in terms of questionnaire and sample design. For example, questionnaires may include standardized items and scales. Since the dataset has probably been analyzed previously, obvious errors and biases should have been noted and rectified.
(3) Larger sample size. Large scale datasets will often use a larger sample than those that can be obtained or afforded by undertaking primary data collection. Larger samples, often drawing from a national population, mean that statistical inference becomes much more straightforward.
(4) The secondary analyst is also able to research topics and/or ...
This solution of 736 words discusses the reasons for why researchers use secondary data and the advantages and disadvantages to consider. Reference used is included.